I usually go for shorter hair on guys, Evan being an exception. Jeff, sadly, not being an exception; when he came back from his little road trip early on I was like "OH THANK GOD THAT MONSTROSITY ON HIS HEAD IS GONE." Sadly, Evan's medium-length locks of win bit me when I tried to make my New Vegas character look like him; there's no hairstyle that comes close to it, but, rather, one that perfectly matches his shorter hair.

(Also I'm ashamed that the only Evan-specific thing I really remember from early episodes is his little Yoga lesson. I am a complete perv and want to see him do more stretchy and bendy things, particularly plow position.)